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Featured Solution: Cisco High Availability DataQ. What is a building management system (BMS)? A. In larger data centers, the building management system (BMS) allows for constant and centralized monitoring of the facility, including temperature, humidity, power and cooling. Approximately half of the power consumed by a data center is required for cooling. As heat load increases, more floor space must be reserved for cooling equipment. Without high ceilings (20 feet or more), the hot exhaust air of servers is likely to become in-take air for servers mounted in the upper portion of a cabinet. IT executives will have to make sure the data can be audited and meet regulatory and compliance rules as well as make sure the growing storage demands don't break the bank. The rise in technology and a changing corporate landscape have presented data center operators new challenges. Storage virtualization is the pooling of physical storage from multiple network storage devices into what appears to be a single storage device that is managed from a central console. Storage virtualization is commonly used in storage area networks (SANs). Virtualization was first introduced in the 1960s by IBM to boost utilization of large, expensive mainframe systems by partitioning them into logical, separate virtual machines that could run multiple applications and processes at the same time. In the 1980s and 1990s, this centrally shared mainframe model gave way to a distributed, client-server computing model, in which many low-cost x86 servers and desktops independently run specific applications. The most basic method of backing up your data is on a simple floppy disk. However, this method is essentially obsolete, as it is difficult to even by a computer which includes a floppy disk drive these days. With CD-Rs and now DVD-Rs being cheaper than ever, it is possible to store far more data on a single disk than was ever possible with a floppy disk. With the Cisco UCS M81KR adapter, multiple virtual interfaces (VIFs) can be identified to match those used by the service console, VMware VMkernel, virtual machine data, Cisco Nexus 1000V Series VLANs, etc. as required. Each of these adapters can be defined within the Cisco Unified Computing System as connected to an individual fabric interconnect and, optionally, enabling a failover to the other. Green IT can be defined as research in and use of IT in an efficient and environmentally friendly manner. According to one aspect of the invention, a data storage system includes a disk drive array including a plurality of disk drives; a first storage processor for controlling the operation of the data storage system; a second storage processor forcontrolling the operation of the data storage system; a first arbiter for controlling communication of data from the first storage processor and the second storage processor to a first group of disk drives of the disk drive array; and a second arbiterfor controlling communication of data from the first storage processor and the second storage processor to a second group of disk drives of the disk drive array. Selected data is redundantly stored on disk drives in the first group of disk drives andthe second group of disk drives, such that, upon failure of the first arbiter, the selected data is available to the first storage processor and the second storage processor through the second arbiter. The Cisco Nexus 1000V aligns management of the operational environment for virtual machines and physical server connectivity in the data center , reducing the total cost of ownership (TCO) by providing operational consistency and visibility throughout the network. It offers flexible collaboration between the server, network, security, and storage teams while supporting various organizational boundaries and individual team autonomy. |
